Abstract: A system and method for routing LoRaWAN backend traffic between peer visited and home Network Server nodes to achieve global roaming in a scalable manner. A LoRaWAN Routing and Control System (LRCS) node is deployed between a visited Network Server and a home Network Server and is configured to proxy signaling and payload data messages therebetween. LRCS node can provide policy control, billing and rating based on roaming agreements between peer LoRaWAN roaming networks. LRCS node protects the overall network by discarding blacklisted and malicious traffic. LRCS node can enhance the message flow logic by adding routing information in the messages such that destination networks can identify that message is routed through a trustable source.

Abstract: A wellbore tool includes a rotatable elongate pipe that includes a first elongate portion extending along a longitudinal axis of the elongate pipe. A first bending portion with a first end attaches to a downhole end of the first elongate portion. The first bending portion deviates from a longitudinal axis of the first elongate portion in a first direction. A second bending portion has a first end attached to a second end of the first bending portion. The second bending portion is positioned downhole of the first bending portion. The second bending portion deviates towards the longitudinal axis in a second direction different from the first direction. The first bending portion and the second bending are eccentric relative to the first elongate portion. The wellbore tool is rotated a set amount and stabbed in a downhole direction until the wellbore tool enters the parted casing.

Abstract: Methods of treating a subterranean formation penetrated by a wellbore include providing environmental water, admixing a viscosifying amount of a polymer and at least one divalent cation with the environmental water to form an admixture, and pumping the admixture through the wellbore at a rate and pressure sufficient to treat the subterranean formation. The viscosity of the admixture increases after the at least one divalent cation, the viscosifying amount of polymer and the environmental water are admixed. Such viscosity increase may be at least about 5% over at least a 10 minute period after the admixture is prepared. The divalent cation(s) may be selected from the group consisting of barium, calcium, copper(II), iron(II), magnesium, manganese(II), strontium, tin(II), zinc, and mixtures thereof. Further, the divalent cation(s) may be provided in the form of a salt with one or more anions selected from acetate, bicarbonate, nitrate, chloride, bromide, iodide, sulfate ion, and mixtures thereof.

Abstract: Learned model providing system has a configuration including consent acquisition device that acquires use consent that an acquired image of visitor is to be used for generating a learned model from visitor, a plurality of cameras that image visitor, learned model generating device that generates the learned model by machine learning based on a captured image imaged by camera, server device that saves the learned model generated by learned model generating device, user side device that receives the learned model from server device, camera, and member database.

Abstract: Certain embodiments are directed to magnetic rheological packer systems that seal an annulus in a downhole wellbore. In one embodiment, the seal is formed from a two-part epoxy and magnetorheological composition. The epoxy and magnetorheological compositions are allowed to be shaped by a magnetic field provided by one or more magnets exerting a magnetic field to place the packer seal.

Abstract: An apparatuses and a method for contacting a callee, wherein one of the apparatuses includes an input component adapted to detect a communication attempt made by a caller communication terminal to establish a connection, through a first communication channel, with a callee communication terminal which is unavailable, an output component adapted to send at least a non-availability message to the caller communication terminal, a processor configured for generating the non-availability message which includes audio routing information providing information establishing a communication, through a second communication channel, between the caller communication terminal and the callee communication terminal and/or a callee alternative communication device.

Abstract: Systems and methods are disclosed for anatomic structure segmentation in image analysis, using a computer system. One method includes: receiving an annotation and a plurality of keypoints for an anatomic structure in one or more images; computing distances from the plurality of keypoints to a boundary of the anatomic structure; training a model, using data in the one or more images and the computed distances, for predicting a boundary in the anatomic structure in an image of a patient's anatomy; receiving the image of the patient's anatomy including the anatomic structure; estimating a segmentation boundary in the anatomic structure in the image of the patient's anatomy; and predicting, using the trained model, a boundary location in the anatomic structure in the image of the patient's anatomy by generating a regression of distances from keypoints in the anatomic structure in the image of the patient's anatomy to the estimated boundary.

Abstract: Various embodiments disclosed relate to compositions including acidic chelator or salt or ester thereof for treatment of subterranean formations including one or more fractures. In various embodiments, the present invention provides a method of treating a subterranean formation. The method includes placing in the subterranean formation a composition including an acidic chelator or a salt or ester thereof. The subterranean formation includes one or more fractures.

Abstract: An electronic device according to various embodiments may include: a communication module comprising communication circuitry; and a processor configured to receive, from an external electronic device functionally connected with the electronic device, a request associated with transferring a portion of one or more rights capable of controlling the electronic device, using the communication module; transfer the portion of the one or more rights to the external electronic device, based at least on the request if the electronic device is performing a function associated with driving; and restrict transferring the portion of the one or more rights to the external electronic device, based at least on the request if the electronic device is performing a function not associated with the driving.

Abstract: Spacer fluid compositions comprising water, a clay, and a sulfur-containing polyether surfactant are disclosed, and such compositions often can further include a weighting additive, an antifoaming additive, and a co-solvent. These spacer fluid compositions can be used to treat metal casing and to remove drilling fluid residue for improved cement bonding in wellbore applications.

Abstract: Embodiments provide a method of encapsulating a solid cement additive. The method includes the step of applying a base film-forming monomer to the solid cement additive. The method includes the step of forming a coating layer surrounding the solid cement additive. The coating layer includes the base film-forming monomer. The method includes the step of applying an overlay film-forming monomer to the coating layer surrounding the solid cement additive. The method includes the step of reacting the base film-forming monomer and the overlay film-forming monomer to produce a polymer shell. The solid cement additive includes solid particles useful in cementing applications. The polymer shell includes a crosslinked polymer. The polymer shell surrounds the solid cement additive. The polymer shell has a permeability to water allowing controlled release of the solid cement additive.

Abstract: A server receives a login request from a first device. The login request includes login information used for an application login. In response to receiving the login request from the first device, the server transmits, to a second device different from the first device, a first message including a verification code. The first message instructs the second device to broadcast an audio signal including the verification code. The verification code is used to verify the first device by the server.

Abstract: Cement slurries, cured cements, and methods of making cured cement and methods of using cement slurries are provided. The cement slurries have, among other attributes, increased yield point, reduced density, improved mechanical properties, increased resistance to H2S, and may be used, for instance, in the oil and gas drilling industry. The cement slurry comprises cement precursor material, Saudi Arabian volcanic ash, and an aqueous solution. The Saudi Arabian volcanic ash comprises SO3, CaO, SiO2, Al2O3, Fe2O3, MgO, and K2O and the cement slurry is free of any other SiO2 additive.

Abstract: A well completion assembly and method including apparatus for setting a compliant screen assembly and a liner within a wellbore in a single trip.

Abstract: A device is for perforation of a downhole formation. The device has an electronically induced acoustic shock wave generator; and an acoustic shock wave focusing member. The device is adapted to focus generated acoustic shock waves onto an area of a borehole in order to disintegrate the downhole formation within said area. The device is adapted to generate a plurality of consecutive focused acoustic shock waves in order to gradually excavate a perforation tunnel, or to improve an already existing perforation tunnel, extending from said borehole and into said formation.

Abstract: A wireless device may include a digital receiver and a digital transmitter, and a controller configured to control the digital receiver to receive signals and the digital transmitter to transmit signals, and further configured to receive a registration rejection from a first roaming mobile network while roaming, add the first roaming mobile network to a list of forbidden mobile networks, register with a second roaming mobile network and receiving an operator list of mobile networks from a home mobile network, and attempt to register with the first roaming mobile network based on a ranking of mobile networks in the operator list.

Abstract: A method of fracturing a formation with a fracturing fluid in a wellbore extending into the formation includes pumping a spacer fluid through a spacer fluid channel into the wellbore and pumping a proppant slurry through a proppant slurry channel into the wellbore separately from the spacer fluid. The method further includes combining the spacer fluid and the proppant slurry within the wellbore to create the fracturing fluid with portions comprising varied proppant concentrations and pumping the fracturing fluid with the varied proppant concentrations into the formation.

Abstract: Embodiments of the present disclosure provide a method and apparatus for detecting a license plate.

Abstract: Convergence of a 5th-Generation communication system supporting higher data rates beyond 4th-Generation system(s) with a technology for Internet of Things (IoT) may be applied to intelligent services. Operator specific services are permitted and provided by allowing an unauthorized terminal to search for and access the such services, and includes notifying a terminal of information corresponding to “operator specific services” by allowing a base station to broadcast predetermined information, displaying information acquired by a terminal, matching information acquired by the terminal with information broadcast from a base station to arrange services, requesting access and notifying a terminal performs an access for “operator specific services” upon accessing a network, providing a menu for determining whether neighboring base stations are capable of “operator specific services” to a user of a terminal, and allowing the terminal to determine whether there is the base station broadcasting the information.

Abstract: Provided here are various invert emulsion drilling fluid compositions. The invert emulsion fluid is a water in oil emulsion, which can include an invert emulsifier to stabilize the water in oil emulsion, a 16 to 18 carbon carboxylic acid, a 36 carbon fatty dimer diol, a polymeric filter control agent, and an inorganic mineral including one or more of lime, calcium chloride, and barite. The invert emulsion drilling fluids can be formulated to be substantially free of clay.